Toán Lớp 6: tìm số tự nhiên x,biết 987+x=1290-48
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Toán Lớp 6: tìm số tự nhiên x,biết 987+x=1290-48
Comments ( 2 )
987+x=1242
x = 1242 – 987
x=255
vậy x=255